Riding toy



FIG. 1 is a left-front perspective view of a riding toy showing my new design;

FIG. 2 is a right-side elevational view thereof, the left side being substantially a mirror image;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a riding toy, substantially as shown and described. 